What are odors? An odor is another word for a smell. When you notice an odor, that tells you that you are exposed to something in…
What is the relationship of pKa and Ka? The smaller the value of Ka, the larger the value of pKa, the weaker the acid. If the…
Response. NH2 and H2N are the same. Is H2N an amino group? Each amino acid has an H2N, or amino group, which has an alkalinity about…
Cocaine | C17H21NO4 – PubChem. What is coke in chemical? Coke (from German “Koks”) is manufactured by carbonizing (coking) coal at a high temperature of about 1200 ℃ in a coke oven. Coke is one of the essential raw materials for iron-making in blast furnaces. Coke mainly consists of carbon. What is coke in chemistry…
The chemical name of this unknown chemical compound of chemical formula Fe(NO3)3 Fe ( N O 3 ) 3 is ferric nitrate. This chemical compound Fe(NO3)3 Fe ( N O 3 ) 3 is also represented by the term iron (III) nitrate. What is Fe NO3 2 chemistry? Iron(II) Nitrate Fe(NO3)2 Molecular Weight — EndMemo.…
Crystalline materials have highly defined and repeatable arrangements of molecular chains. These materials tend to have sharp melting points. Some of the common examples are diamonds, table salt, ice, sugar, and most metals. What is called crystalline? A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are…
Chemical composition Portland cement is made up of four main compounds: tricalcium silicate (3CaO · SiO2), dicalcium silicate (2CaO · SiO2), tricalcium aluminate (3CaO · Al2O3), and a tetra-calcium aluminoferrite (4CaO · Al2O3Fe2O3). What is that cement? What Does Cement Mean? Cement is a dry powdery substance made by calcining lime and clay, mixed with…
Efficiency is the ratio of the work performed by a machine or in a process to the total energy expended or heat consumed. What is efficiency and its formula? You can measure it by using the following formula: Efficiency = Output ÷ Input. Output (or work output) is the total amount of useful work completed…
Gravimetric analysis is a class of lab techniques that uses changes in mass to calculate the amount or concentration of an analyte. One type of gravimetric analysis is called volatilization gravimetry, which measures the change in mass after removing volatile compounds. What are the steps of gravimetric analysis? The steps required in gravimetric analysis, after…
An intensive property is a property of matter that depends only on the type of matter in a sample and not on the amount. Color, temperature, and solubility are examples of intensive properties. What is meant by intensive property? Once the concentration of a solution has been decided, it cannot be changed just by changing…
When individuals experience chemistry, they experience their interaction as something more than the sum of their separate contributions. Interpersonal chemistry requires coordination, in that the interacting individuals share and match their goals and efforts, supporting each other in the process. What does it mean to have chemistry with someone? Simply put, the feeling of chemistry…
Formaldehyde is the simplest aldehyde made of hydrogen, carbon and oxygen with the formula CH2O. Formaldehyde is one of a large family of chemicals known as volatile organic compounds which evaporates and becomes gaseous at room temperature. What is CH2O used for? Here are some of the common uses of formaldehyde: Building materials: CHâ‚‚O is…
Lab medicine A battery of 12 clinically important tests on serum analytes, which are often ordered together–albumin, alk phos, AST, calcium, cholesterol, glucose, LD, phosphate, total BR, total protein, urea nitrogen–BUN, and uric acid. Is a CMP and chemistry panel the same? Comprehensive metabolic panel (CMP) is a series of blood tests that give your…
Phosphate ion is a reasonably strong base. It hydrolyzes in water to form a basic solution. What is the name of the ion PO3 3? What type of bond is PO3? Lewis structure of PO3- ion contains one double bond and two single bonds between the Phosphorous (P) atom and Oxygen (O) atoms. The Phosphorus…
Definition. An inverse relationship is one in which the value of one parameter tends to decrease as the value of the other parameter in the relationship increases. It is often described as a negative relationship. What is an inverse relationship in examples? An inverse relationship occurs when two variables change in opposite directions. For example,…
Chemistry is involved in every aspect of the cosmetology field including hair, hair dying, esthetics due to the chemical reactions formed when blending chemicals. All beauty products are made from combinations of chemicals and fall into the realm of chemistry. How does a hair stylist use chemistry? Other Chemicals Hairdressers don’t just color hair, they…
Log P, the logarithm of the octanol-water partition coefficient, is widely accepted as a measure of lipophilicity of a substance. What does LogP value tell you? The log P value for a compound is the logarithm (base 10) of the partition coefficient (P), which is defined as the ratio of the. compound’s organic (oil)-to-aqueous phase…
Rf values do not have units since it is a ration of distances. Because mixture solvents are often applied Rf values are usually written as the following examples: Rf = 0.66 (60% Ethanol) – if % is given it is assumed that the mixture is in water hence 60% ethanol 40% water. What does Rf…
In the present review, we will reveal that DMF is actually something much more than a solvent. It is a unique chemical since, as well as being an effective polar aprotic solvent, it can play three other important roles in organic chemistry. It can be used as a reagent, a catalyst, and a stabilizer. What…
Listen to pronunciation. (bay-SIH-sih-tee) In chemistry, the quality of being a base (not an acid). A base is a substance that can accept hydrogen ions in water and can neutralize an acid. What is basicity with example? Basicity definition The definition of basicity is the condition of being a base, or the difficulty for an…
Nuclear Notation Note: in hyphen notation, the number after the hyphen is the mass number (protons + neutrons). For the Periodic Table, the Atomic Number is on top and the average atomic mass is on the bottom. For nuclear notation, the mass number of the isotope goes on top and the atomic number goes on…
China tops the chemistry ranks, closely followed by the US. Which country is in demand of chemists? 1. Germany. A country famous for welcoming international students with open arms, Germany tops the list of places to study chemistry abroad. Germany has the largest chemical industry in Europe, and therefore many universities offer technical courses, focused…
Chemistry plays an important and useful role towards the development and growth of a number of industries. This includes industries like glass, cement, paper, textile, leather, dye etc. We also see huge applications of chemistry in industries like paints, pigments, petroleum, sugar, plastics, Pharmaceuticals. Why do you select chemistry? Chemistry helps you to develop research,…